Malicious PDF — malware analysis report

Static analysis result for SHA-256 86823a560d8709ed…

MALICIOUS

PDF

42.0 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: 442b7b6ca757446330adc7796fee2974 SHA-1: 5956665a99932f9c77ad391561da70541134147b SHA-256: 86823a560d8709eda5dfe9d4b53b641d83c76f4e051581cd6eadcb699787def9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. This suggests a tactic to manipulate search engine results or distribute additional malicious content. While no scripts were directly extracted, the nature of the embedded links and the ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly indicate a malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://techlinkat.com/uploads/1/3/0/5/130588948/gunanebenil.pdf In PDF document text
    • http://mta-sts.recorderstands.com/uploads/1/3/0/2/130273626/b77d834b822cc54.pdfIn PDF document text
    • http://administratormaill.com/uploads/1/3/0/4/130475938/c8ddf7e1e7f28.pdfIn PDF document text
    • http://2030portal.com/uploads/1/3/0/6/130620547/kaguso_sopugipamirat_rolevivadu_xorapus.pdfIn PDF document text
    • http://antiguarentalhouse.com/uploads/1/3/0/6/130620919/wuxopu_farowonamive_niraxezirojezu_budidejexeje.pdfIn PDF document text
    • http://buckfiftyandhammer.com/uploads/1/3/0/3/130313376/5a4255d8e6.pdfIn PDF document text
    • http://monsoonal.com/uploads/1/3/0/8/130813601/1164047.pdfIn PDF document text
    • http://sjhdesignwerks.com/uploads/1/3/0/4/130483368/093fc.pdfIn PDF document text
    • http://nfmmchealthhome.com/uploads/1/3/0/5/130590663/jagugefotaweka.pdfIn PDF document text
    • http://drrichardarcher.com/uploads/1/3/0/7/130738572/zimupulowol.pdfIn PDF document text
    • http://akemi-beautytreatments.com/uploads/1/3/0/6/130639516/navaguvu_wanez_wetububitisejaj.pdfIn PDF document text
    • http://ns2.mhssca.org/uploads/1/3/0/3/130379069/tepimamewofusuvanov.pdfIn PDF document text
    • http://elisamurphyforjudge.com/uploads/1/3/0/7/130740458/5469564.pdfIn PDF document text
    • http://privateequityaccountingjobs.com/uploads/1/3/0/5/130589099/603450.pdfIn PDF document text
    • http://www.cbtcounsellingpsychotherapy.com/uploads/1/3/0/5/130588191/300502.pdfIn PDF document text
    • http://yardgoatband.com/uploads/1/3/0/7/130775118/e5076d6178.pdfIn PDF document text
    • http://adsl-63-204-18-50.benefitplans.org/uploads/1/3/0/5/130551615/130551615.html#uptet+junior+science+notes+in+hindi+pdfIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47F0 8068 bytes
SHA-256: 225b18601ab7058238ba823a7e97a54f7b723484e34ec7f8de9c85764f440f22

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